In Android before 2018-04-05 or earlier security patch level on Qualcomm Small Cell SoC, Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear FSM9055, IPQ4019, MDM9206, MDM9607, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, when a hash is passed with zero datalength, the code returns an error, even though zero data length is valid.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, SD 400, SD 425, SD 430, SD 450, SD 600, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 820A, SD 835, SD 845, SD 850, and SDX20, in the Diag User-PD command registration function, a length variable used during buffer allocation is not checked, so if it is very large, an integer overflow followed by a buffer overflow occurs.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9615, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 600, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 835, SD 845, SD 850, and SDX20, several EFS2 DIAG command handlers are not calling fs_diag_access_check().

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MDM9640, MDM9650, QCA4531, QCA6174A, QCA6574AU, QCA6584, QCA6584AU, QCA9377, QCA9378, QCA9379, SD 210/SD 212/SD 205, SD 425, SD 600, SD 625, SD 650/52, SD 808, SD 810, SD 820, SD 835, SD 845, SD 850, and SDX20, if WLAN FW receives the WMI_STA_SMPS_PARAM_CMDID ioctl in not-associated state, when the virtual channel handle is not assigned, the code doesn't check for NULL virtual channel handle, so an assert occurs.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear IPQ4019, IPQ8064, MDM9206, MDM9607, MDM9635M, MDM9640, MDM9650, QCA4531, QCA6174A, QCA6574AU, QCA6584, QCA6584AU, QCA9377, QCA9378, QCA9379, QCA9558, QCA9880, QCA9886, QCA9980, SD 210/SD 212/SD 205, SD 425, SD 625, SD 808, SD 810, SD 820, and SDX20, while processing firmware image signature, the internal buffer may overflow if the firmware signature size is large.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9615, MDM9625, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 425, SD 430, SD 450, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 808, SD 810, SD 820, SD 835, SD 845, SD 850, and SDX20, key material is not always cleared properly.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile and Snapdragon Mobile IPQ4019, MDM9625, MDM9635M, MDM9640, MDM9650, MDM9655, SD 210/SD 212/SD 205, SD 400, SD 410/12, SD 615/16/SD 415, SD 800, SD 808, SD 810, SD 820, and SD 820A, A non-secure region check is done while registering QSEE buffer address which is passed by HLOS but not while logging in the QSEE buffer, so corruption of dynamically protected secure region can occur if the non-secure buffer is changed between the time it's checked and when it's used.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9650, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 625, SD 650/52, and SD 835, in some TrustZone API functions, untrusted pointers can be dereferenced.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Automobile, Snapdragon Mobile, and Snapdragon Wear MDM9206, MDM9650, SD 210/SD 212/SD 205, SD 820, SD 820A, and SD 835, incorrect configuration of the OCIMEM MPU may provide NonSecure Software access to OCIMEM memory used by TZ.

In Android before 2018-04-05 or earlier security patch level on Qualcomm Snapdragon Mobile and Snapdragon Wear MDM9206, MDM9607, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, SD 210/SD 212/SD 205, SD 400, SD 410/12, and SDX20, after loading a dynamically loaded code section, I-Cache is not invalidated, which could lead to executing code from stale cache lines.